PROBLEM TO BE SOLVED: To provide a road surface gradient estimation device and a road surface gradient estimation method which can estimate with high accuracy road surface gradients without reducing frequencies at which the road surface gradients are estimated.SOLUTION: A road surface gradient estimation device 30 comprises a vehicle speed sensor 26, an acceleration sensor 27 and a road surface gradient calculation portion 31. The road surface gradient calculation portion 31 is constituted to comprise an estimation portion 32 that estimates road surface gradients and a restriction portion 33 that puts a restriction on an estimate value θz on the basis of a gradient change rate α relative to a movement distance or movement time of a vehicle 10 based on the estimate value θz estimated.SELECTED DRAWING: Figure 3

    【課題】路面勾配の推定頻度を低減させずに、路面勾配を高精度に推定する路面勾配推定装置及び路面勾配推定方法を提供する。【解決手段】路面勾配推定装置30は、車速センサ26と、加速度センサ27と、路面勾配演算部31とを備え、路面勾配演算部31が、路面勾配を推定する推定部32と、推定した推定値θzに基づいた車両10の移動距離又は移動時間に対する勾配変化率αに基づいて、その推定値θzに制限を掛ける制限部33と、を備えて構成される。【選択図】図3


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    Title :

    ROAD SURFACE GRADIENT ESTIMATION DEVICE AND ROAD SURFACE GRADIENT ESTIMATION METHOD


    Additional title:

    路面勾配推定装置及び路面勾配推定方法


    Contributors:

    Publication date :

    2017-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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